% Appendix B - Glossary of Recommendation Runs
\chapter{Glossary of Recommendation Runs}
\label{app:glossary}
\lhead{Appendix B. \emph{Glossary of Recommendation Runs}}



In this appendix we list the run names used in Chapter \ref{chapter4} with a brief explanation for the convenience of the reader in Tables \ref{table:glossary1} and \ref{table:glossary2}.

\begin{table}[htp]
  \caption[Run names used in Chapter \ref{chapter4}]{Run names used in Chapter \ref{chapter4}.}
  \begin{center}
  \begin{small}
  \begin{tabularx}{0.9\linewidth}{l|X}
  \hline
  {\bf Run name} & {\bf Run description}  \\
  \hline
  \hline
  \run{u-bin-sim}       & User-based CF using binary vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:cf-algorithm}). \\
  \run{u-bin-idf-sim}   & User-based CF using \tfidf-weighted vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:cf-algorithm}). \\
  \run{i-bin-sim}       & Item-based CF using binary vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:cf-algorithm}). \\
  \run{i-bin-idf-sim}   & Item-based CF using \tfidf-weighted vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:cf-algorithm}). \\

\hline

  \run{ut-jaccard-sim}  & User-based CF using binary vectors from the  {\bf UT} matrix and Jaccard overlap (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{ut-dice-sim}  & User-based CF using binary vectors from the  {\bf UT} matrix and Dice's coefficient (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{ut-bin-sim}  & User-based CF using binary vectors from the  {\bf UT} matrix and cosine similarity (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{ut-tf-sim}  & User-based CF using tag frequency vectors from the  {\bf UT} matrix and cosine similarity (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{ut-tfidf-sim}  & User-based CF using \tfidf-weighted tag frequency vectors from the {\bf UT} matrix and cosine similarity (Subsection \ref{4:subsec:tagging-overlap}). \\
  
  \run{it-jaccard-sim}  & Item-based CF using binary vectors from the  {\bf IT} matrix and Jaccard overlap (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{it-dice-sim}  & Item-based CF using binary vectors from the  {\bf IT} matrix and Dice's coefficient (Subsection \ref{4:subsec:tagging-overlap}). \\

  
  \hline
  \end{tabularx}
  \end{small}
  \end{center}
  \label{table:glossary1}
\end{table}


\begin{table}[htp]
  \caption[Run names used in Chapter \ref{chapter4} (continued)]{Run names used in Chapter \ref{chapter4} (continued).}
  \begin{center}
  \begin{small}
  \begin{tabularx}{0.9\linewidth}{l|X}
  \hline
  {\bf Run name} & {\bf Run description}  \\
  \hline
  \hline
  
  \run{it-bin-sim}  & Item-based CF using binary vectors from the  {\bf IT} matrix and cosine similarity (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{it-tf-sim}  & Item-based CF using tag frequency vectors from the  {\bf IT} matrix and cosine similarity (Subsection \ref{4:subsec:tagging-overlap}). \\
  \run{it-tfidf-sim}  & Item-based CF using \tfidf-weighted tag frequency vectors from the {\bf IT} matrix and cosine similarity (Subsection \ref{4:subsec:tagging-overlap}). \\

\hline  

  \run{u-tf-sim}  & User-based CF using frequency vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:tagging-intensity}). \\
  \run{u-tfidf-sim}  & User-based CF using \tfidf-weighted frequency vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:tagging-intensity}). \\
  \run{i-tf-sim}  & Item-based CF using frequency vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:tagging-intensity}). \\
  \run{i-tfidf-sim}  & Item-based CF using \tfidf-weighted frequency vectors from the ratings matrix {\bf R} and cosine similarity (Subsection \ref{4:subsec:tagging-intensity}). \\

\hline

    User-based fusion        & User-based CF using fused user-user similarities (Subsection \ref{4:subsec:similarity-fusion}). \\
    Item-based fusion        & Item-based CF using fused item-item similarities (Subsection \ref{4:subsec:similarity-fusion}). \\

\hline

    \run{u-tso-sutter-sim}  & User-based CF using tag frequency vectors from the combined {\bf R}|{\bf UI} matrix and cosine similarity (Subsection \ref{4:subsec:tag-aware-fusion}). \\
    \run{i-tso-sutter-sim}  & Item-based CF using tag frequency vectors from the combined {\bf R}|$\mathbf{IT}^T$ matrix and cosine similarity (Subsection \ref{4:subsec:tag-aware-fusion}). \\
    Tag-aware fusion        & Weighted combination of \run{u-tso-sutter-sim} and \run{i-tso-sutter-sim} runs (Subsection \ref{4:subsec:tag-aware-fusion}). \\
    Random walk model        & Random walk model according to \cite{Clements:2008} (Subsection \ref{4:subsec:random-walk}). \\
  
  \hline
  \end{tabularx}
  \end{small}
  \end{center}
  \label{table:glossary2}
\end{table}

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\vspace{10em}

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